Pocket flash-light battery and bulb-tester



R. E. COLE.

POCKET FLASH LIGHT BATTERY AND BULB TESTER..

APPLICATION FILED luLY. 191s.

" 1 ,T3 1 5,81 6 Patented Sept. 9, 1919.

l c (im V5 1 f 4M ml l Il l a y 6 E vL rl C! y a w @l /J ;\\I Y 1 A- 3/ 6- C-: i 1V z f/ f I ff 64T 5 A l l 5141) Mlist e @49.7 a.. /MWM' RAY E. COLE, OF CHICAGO HEIGHTS', ILLINOIS.

POCKET FLASH-LIGHT BATTERY AND :BULB-TESTER.

Specication of Letters Patent.

Patented Sept. 9, 1919.

Application led.l J'uly 3, 1918. Serial No. 243,186.

Illinois, have invented certain new and use iul Improvements in Pocket Flash-Light Batteries and Bulb-Testers, ot which the following is a specification.

This invention provides means whereby flash light batteries and bulbs may be tested without requiring adjustment or df: ger of breakage.

The invention provides an appliance which may be utilized for testing dry cells and batteries or' like character' and ior determining the voltage of bulbs as also the voltage and amperage of dry cells and batteries.

The invention has for its object to provide an appliance of such construction whereby batteries and cells may likewise be tested thereby obviating the setting or adjusting ot' parts which is objectionable in a device of this character.

Thedrawing illustrates a preferred embodiment ci the invention. However, it is to be understood that in adapting the saine to meet different conditions, various changes in the form, proportion, and minor details oll construction may be resorted to without departing from the nature of the invention as claimed hereinafter.

Figure l isa iront view of an appliance oi the character stated, embodying the invention showing the circuits in diagram,

Fig. 2 is a sectional detail on the line Q-Q of Fig. 1, the parts being enlarged,

Fig. 3 is a horizontal section on the line 33 et Fig. l showing the parts on a larger scale, and

Fig. Ll is a sectional detail on the line ffl-4' of Fig. 1 the parts being enlarged.

Corresponding and like parts are referred to in the following description and indicatedv in the several views of the drawing by like reference characters.

The numeral l designates a board or suit` able base upon which the several parts are mounted. A strip 2 projects rearwardly.

from the board to inclose a space in which the several connecting wires are located, such space being closed by means of a cover 3 applied to the circumscribing strip 2.

A plurality of bulbs are designated by the letters A, B, and C, the same being disposed at the upper end of the board or base l. Suitable blocks are attached to the base l and are provided with lamp sockets to -receive the bulbs A, B, and C. These blocks are indicated generally at E. The block E supporting the bulb A is provided with two contacts a, a. which are electrically connected with the parts of the socket so as to include the bulb A in circuit when such bulb is in position. The contacts c, a are prefeu ably disposed upon adjacent sides of the block. These elements constitute a tester for small batteries and cells which have the contacts at one end. When the battery or cell is presented so that its contacts make electrical connection with the contacts a, a the bulbA will become illuminated under normal conditions. A strip 4 projects outwardly from the lower edge of the basel,

and receives an expansible coil spring a2 which constitutes a yieldable contact the saine being electrically connected by means of' a wire c3 and a wire l2, lamp C and wire 18 with Contact a. It will thus be understood that a four cell battery may be tested by bringing the upper contact in engagement with the contact c and the lower contact in engagement with the contact c2 thereby coniplating the circuit through the lamp C and causing the same to light under normal conditions.

The bulb B is mounted on a block E in a manner similar` to the bulbs A and C. A block F is slidably mounted upon the base l and has two bars 5 attached thereto at their lower ends, the upper ends of the bars 5 operating in grooves 6aL formed in the rear side of the block E'. In this manner the block F is retained in place and directed in its vertical movements. An expansible heli- E and F and has its ends seated in sockets formed therein. The spring 6 normally presses the block F downward and admits of the same yielding vertically. Downward displacement of the block Fis prevented by means of p ins 7 passed through the upper ends of the bars 5. A contact bis applied cal spring 6 is interposed between the blocksl to the lower side of the block F, and is electrically connected with an'` element 8 on the rear side of the block F. A' plate 9 is seated in the face of the base l and is connected by means of a wire with one contact of the bulb B. The plate 9 preferably consists of a spring so as to insure contact beingmaintained' between the element 8 and the plate in all adjustments to the blockF. A block l() is mounted upon the strip 4 and carries va contact b which is electrically lconnected by means of a wire `11 with the other terminal of the bulb B... It will thus be understood that when a battery or cell is introduced between the blocks F and 10 with its poles in engagement with the-contact b, b the bulb B will become lighted under normal conditions. Any variation in the distance between the terminals of different batteries or Y cells of the same size will be compensated for by the yielding of the blockF as will be readily understood.

A block F is associated with the block E supporting the bulb C and the same is mounted in substantially the same manner as the block F hereinbefore described in detail, hence it is not `deemed necessary to refer to the manner of mounting such block. This block F receives a contact c which corresponds to the contact b and whichis connected with one contact of the bulb c in substantially the same manner as the contact b greater than the distance between the contacts b, b thereby accommodating ;a `battery cell of greater length. The parts associated with the bulbs B and C are substantially identical the only diiierence residing in the distance between the coperatl ing contacts.

For testing the voltage and amperage of a battery, cell, or bulb an ainnieter D is provided and mounted upon the base l and is. electrically connected by suitable leads with contacts d, d applied to an end portion of the strip 4. It will thus be understood that the strength of a bulb or battery may -be readily determined by means of the am- `meter upon bringing the poles lor contacts of the battery or bulb contacts d, d.

, A wire` da connects one pole of the ammeter `D with the contact d- A wire d4 oonnects the other pole of the ammeter with the contact d. A wirel 14 connects `the wire d3 with a terminal. of the lamp socket A.

in connection with the A wire l5 connects 4the wire Z4 with the other` terminal of the lamp socket-A. Hence the voltageof differentV bulbs maybe-tested by ttingthe same in the socket ,provided to receive the lamp y1A.

From the foregoing taken in connection with the accompanying drawing `it will be understood that the `invention provides an `appliance ywhereby dry cells and batteries of various lengths'may be conveniently and quickly tested so as to determine their condition and strength. It will also be understood that bulbs may be in a like manner tested since they may be quickly applied to the sockets mounted upon the several blocks E, it beingunderstood that the bulbs and their cooperating sockets are of usual construction so as to admit of the'bulbs being easily and quickly removed or placed in position. 4

Bulb A is usually 2.7 amperes, 3%; volts and used in connection with two cell batis used with three or four cell batteries.

test a four cellbattery the same is placed with its terminals in connection with the contacts a and a2, the current passing through the lamp C in the manner stated. v The foregoing descrptionand the drawings have referencev to what zmay be oonsidered the preferred, or approved, form of my invention. lIt is to be understood that I may make such changes in construction` and arrangement and combination of parts, materials, dimensions, yet cetera, as may prove expedient and fall within the scope of the appended claims.

Having thus fully described my invention, what I claim as new and desire to secure by Let-ters Patent is l. In a tester of 'the character specied, a relatively fixed bulb supporting member, a slidalble member, a spring between the two -members and normally pressing the slidable member outward, a spring plate electrically connected with the bulb, and a contact on the slidable member and maintaining electric connection with the plate latl all adjustments of the slidable member.

2. In a tester of the character speciied, a base, a fixed member on the base, a plate on the base, a bulb mounted on the member and in electric connection f with the said tained in place by means 'of the Said fixed member4 which constitutes a keeper therefor. 3. In a tester of the character specified,

va base, affixed. member on the base, a bulb mounted upon the fixed member, la plate on the base and in electrical connection with Vthe bulb, a slidable mem'ber, anexpansible ments, and means for eliminating the outspring between the fixed and slidable memward movement of the slidable member. 10

bers, a contact on the slidable member and In testimony whereof I affix my signain electrical connection with the said pla-Ate, ture in presence of two witnesses.

elements attached to the slidablemember RAY IE. COLE; and operable in openings formed in the Witnesses: fixed member whereby a slidable member is GEO. W. CQEMAN,

retained in place and directed in its move- JOHN MICHAHT. 

